gileoy



4 Sheets-Sheet 1.

(No Model.)

T. P. GILROY.

GLASS BEVELING MACHINE.

No. 370,187. Patented Sept. 20, 1887.

INVENTOR i WITNESSES ATTORNEYS.

r4. PETERS. Pnmumn n iw. Washington a. c.

(N0 Modei.) I 4 Sheets-Sheet 2.

T. P. GILROY.

GLASS BEVELING MACHINE.

M ZN

INVENTOR:

BY Jill Mu ATTORNEYS.

N. PEYERS. PhMO-Li(hngriphcr, Walhingwn, D. C.

Patented Sept. 20, 1887.

WITNESSES fiw $062 @JWe/T 4 Sheets-Sheet 3.

(No Model.)

T. F. GILROY.

GLASS BEVBLING MACHINE.

Patented Sept. 20, 1887.

ATTORNEYS.

N. PEIERS. mreume n her, wmm xm n. c.

(No Model.) 4 Sheets-Sheet '4. T. F. GILROY.

GLASS BEVBLING MACHINE.

,187. Patented Sept. 20, 1887.

WITNESSES IN VENIOR M M w ATTORNEYS.

It PETERS. Pnnwumn hphar, Washington. D, c.

UNITED STATES ATENT Fries.

THOMAS F. GILROY, OF NE\V YORK, N. Y.

GLASS-BEVELING MACHINE.

SPECIFICATION forming part of Letters Patent No. 370,187, datedSeptember 20, 1887.

Application filed October 14, 1886. Serial No. 216,240.

To aZZ whom it may concern:

Be it known that I, THOMAS F. GILRoY, of the city, county, and State ofNew York, have invented a new and Improved Glass-Beveling Machine, ofwhich the following is a full, clear, and exact description.

The object of my invention is to provide a new and improvedglass-beveling machine which is simple and durable in construction andvery effective in operation.

The invention consists of various parts and details and combinations ofthe same, as will be fully described hereinafter, and then pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side view of my improvement. Fig. 2 is a plan view of thesame. Fig. 3 is an enlarged central sectional elevation of the mechanismfor raising and lowering the spindle carrying the swinging frame. Fig. 4is an enlarged central sectional elevation of part of my improvement onthe line 0000 of Fig. 2. Fig. 5 is a side elevation of my improvement,showing the frame thrown downward ready for work.

In the middle of a suitable frame, A, is mounted a vertical shaft, B,which is rotated by suitable means from the driving -shaft C. To theupper end of the shaft B is secured a grinding disk or wheel, D, aroundwhich are grouped any desired number of swinging frames, E, which areall alike in construction and operation, so that it will suffice todescribe only one.

The mechanism carried by each frame E is actuated from the verticalshaft B by means of a worm, F, which meshes into the wormwheel G,attached to the shaft G, mounted in suitable hangers on the frame A, andthe said shaft G is also provided with the bevel gearwheel G, whichmeshes into the bevel gearwheel G mounted on the vertical shaft H, bymeans of a key fitting into a slot in said shaft H, so that the rotationof the gear-wheel G is transmitted to the said shaft H, and the lattercan be moved up or down without disturbing the position of thegear-wheel G The latter is held in place by the extension G of the outer(No model.)

hanger, G and the said extension also forms a bearing for the shaft H.

The shaft H passes through the hollow spindle I, which has its bearingin the casing J, fastened to one corner of the top of the frame A. Thespindle I is provided with the external screwthread, I, which engageswith the nut K, held in the casing J, and provided with the gearwheel K,(see Fig. 3,) which meshes into the gear-wheel K", attached to the shaftKflwhich has its bearing on the casing J, and is provided on its outerend'with the hand-wheel K. To the upper end of the spindle I is fasteneda bar, L, to which is secured the lengtheningbar L, both bars beingguided in a slot in the adjustable sleeve L attached by the sctscrew Lto the casing J.

To the upper end of the shaft H is secured the bevel gear-wheel M, whichrests on the top of the spindle I, and meshes into the bevel gear wheelM, secured to the shaft M mounted to rotate in the forked upper end ofthe spindle I. A second bevel gear-wheel, N, is also fastened on theshaft M and meshes into the gear-wheel N, attached to the shaft Nmounted in the swinging frame E, pivoted on the shaft M The shaft N isprovided with a gear-wheel,

N, which meshes into the gear-wheel O,

mounted on a shaft, 0, and held by means of a key in the shaft 0,fitting into a slot in the said gear-wheel 0, so as to permit of raisingand lowering the said shaft 0 without changing the position of thegear-wheel O. The shaft 0 has its lower bearing in the frame E, and itsupper bearing in the sleeve P, in which it is held, by means of the nutO. The sleeve P slides in the frame E, and can be raised or lowered withits shaft 0 by means of the screw Q, screwing into the frame E, andhaving a collar, Q, placed in a recess in the arm P of the sleeve P. Tothe upper end of the screw Q is attached a crank-arm, R, by which thescrew Q, is turned. On an axial line with the shaft 0 is placed the diskS, having a trunnion, S, which has its bearing in the front end of thearm E of the frame E. The glass disk, U, to be beveled is placedcentrally on the said disk S, and the foot 0 attached to the lower endofthe shaft 0, is moved tightly upon the up YOU per surface of the glassdisk U, so that the V latter and its supporting-disk S arerotated by therotation of the shaft An arm, E, projects from the rear of the frame E,and a balancing-weight, E is fastened to the said 5 arm E An extension,E", on one side of the frame E is provided with a spring-pin, T, whichengages with a corresponding aperture, T, on

the spindle I when the frame E is thrown into [0 the position shown inFig. 1. 1 The pin T locks and holds the frame E in this position.

The operation is as follows: When the frames E are in the position shownin Fig. 1, then the glass disks, U, which are to be beveled are x 5placed on the respective disks S and the shafts O are moved downward byturning the crankarm R until the foot-clamps 0 press the glass disks Utightly upon the disks S. Each frame E is then unlocked by disengagingthe springpin T from the aperture T of the spindle I,

and the frame E swings downward on its pivot (the shaft M) by its ownweight until the edge of the glass disk U touches the grinding-wheel D.The latter is rotated from the drivingshaft 0, and imparts a rotarymotion to the shaft G, which, by means of the gear-wheels 'G and Grotates the shaft H, and the latter,

by means of the gear-wheels M M'- N N, r0.-

tates the shaft N which in turn imparts a rotary motion to the shaft 0by means of the gear-wheels N and O, and as the glass disk U is held onthe foot O of the shaft 0 it is also rotated in the direction of thearrow or on the grinding-wheel D, which rotates in the oppo- 5 sitedirection, as indicated by the arrow b.

(See Fig. 2.) The desired degree of bevel is obtained by raising orlowering the pivotal point of the frame E, which is done by turning thehand-wheel K, which causes the gear .0 wheel K to rotate the nut K,whereby the threaded spindle I is caused to rise or descend,

according to the direction in which the handwheel K is turned. Thespindle I is prevented from turning by the bar L or its lengthening 5barL being held in the notch of the collar L secured by the set-screw Lto the stationary casing J but when it is desired to change the positionof the glass disk U on the face of 'the grinding-wheel D the set-screw Lis loos-' o ened and the spindle I and its pivotal frame E are turned tothe desired place to cause the bars L and L to turn the collar L, andthen the set-screw L is again screwed up against the spindle I.

It will be seen that the swinging frame E by its own weight holds theedge of the glass disk U into contact with the face of thegrinding-wheel D, and this weight on the disk U can be increased ordecreased by changing the balancing-weight E. It will also be seen thatthe glass disk to be beveled revolves in an opposite direction to thatin which the wheel I) revolves, whereby the bevel on the glass disk isground very rapidly.

The vertical adjustability of the spindle I and the pivotal frame Epermits of grinding any desired bevel upon the edge of the glass disk U,and the means by which the glass disk is held and rotated permits ofchanging the disks very rapidly after they are ground, and also ofgrindingv disks. of any desired diameter.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. In a beveling-machine, the combination of agrinding-wheel with a swinging frame, a revolving shaft mounted in thesaid frame and carrying the glass disk to be beveled, and the screwthreaded spindle engaging with the gear-wheel nut actuated by thehand-wheel for raising or lowering the said frame, substantially asshown and described.

2. In a beveling-machine, the combination of a revolving grinding-wheelwith a pivoted frame, a revolving shaft mounted in' the said frame andcarrying the glass disk to be beveled, the screw threaded spindleengaging with a nut carrying a gear-wheel gearing with a hand-wheel, anda shaft geared to the shaft carrying the glass disk, and to a secondshaft, the latter shaft gearing with a shaft also geared to thegrinding-wheel shaft, substantially as shown and described.

3. In a beveling-machine, the frame E, the disk S, having its bearing onthe said frame, and the revolving shaft 0, having the foot 0 incombination with the spindle I, on which the said frame is pivoted, andmeans for raising or lowering the said spindle, comprising thegear-wheel nut engaging a screw-thread on said spindle and a hand-wheel,substan-' tially as shown and described.

4. In a beveling-machine, the frame E, the disk S, having its bearing onthe frame E,

and the shaft 0, mounted in the said frame E, in combination with thescrew Q, connected to an arm, P, of a bearing-sleeve, I, supporting theupper end of said shaft, for raising and lowering the said shaft,substantially as shown and described.

5. In a beveling-machine, the frame E, the disk S, having its bearing onthe frame, the adjustable shaft 0', and the threaded spindle I, on whichthe said frame is pivoted, in combination with the gear-wheel nut K, inwhich screws the said spindle, the gear-wheel K and the shaft K forturning the said gearwheel nut, substantially as shown and described.

6. In a beveling-machine, the frame E and the vertically-adjustablespindle I, on which the said frame is pivoted, in combination with thecentral shaft B, carrying the grindingwheel, the worm F on the saidshaft, the wormwheel G, meshing in the said worm F and attached to theshaft G, the gear-wheel G on the said shaft G, the gear-wheel G meshingin the gear-wheel G and attached to the shaft H, the shaft H, movingvertically with the spindle I, the gear-wheel M on top of the shaft H,the gear-wheel M, meshing into the gearwheel M and fastened on the shaft1W, the to slide vertically in the frame E, the disk S, shaft M havingits bearings on the spindle and means for adjusting and holding theshaft E0 I and forming the pivot for the frame E, the O, substantiallyas shown and described.

ear-Wheel N on the shaft M meshing into the gear-wheel N on the shaft 11 the shaft N THOS' GILROY' mounted in the frame E and carrying thegear- Witnesses: wheel N the gear-wheel O, meshing into the MARTIN J.GILROY,

gear-wheel N mounted on the shaft 0, held JAMES HEALIs.

